President Donald Trump's top negotiator working on Russia's war in Ukraine predicted Trump would have a "successful" phone call with President Vladimir Putin on Monday, saying he believed the ...

Characteristics of the insulating medium and reaction over time and frequency of current interruption. Frequency of operation property, influences greatly all the above-mentioned parameters. The need ...

A circuit breaker is an ... covering the area of a single microcontact would have little effect on the conductivity of the contact as a whole. As soon as the oxide layer extends to a significant ...